1、The wireless remote control switch uses superheterodyne receiving circuit, which has better anti interference. 2、The 2 channel relay remote control switch with ultra small size, suitable for all kinds of narrow spaces. 3、It has strong compatibility, can support various 433M fixed code, learning code remote control. 4、The wireless remote control switch is easy to install and use and the performance is stable and reliable. 5、Suitable for small loads such as household and industrial control relays, small bulbs, and small motors. Item Type: Wireless Remote Control Switch Material: PCB Voltage: Input 12V, Output 12V Maximum Working Load: 10A Working Frequency: 433MHz Receiving Sensitivity: -105dBm Working Temperature: -40 to +80°C Output Mode: Inching, Self-locking, Interlocking Built-in Button Battery in the Remote Control: 80mAh Button Battery Compatible: For Small Loads Such As Household and Industrial Control Relays, Small Bulbs, and Small Motors 1 x Receiver 1 x Transmitter